Carameldelites – I believe this is a clear example of you not facing up to the effects of the breakup.
Of course it wasn’t him in your dream. It would be very unusual even if you took your feelings and thoughts about him while awake as being him. They are only representations of what you feel about him and what you think about him – they are NEVER him.
I know that is a big one for many people to take in, but if you find it difficult to believe get a book about the brain and our feelings and thoughts.
So, what you dreamt about was your feelings about the breakup, and he was the incarnation of that, the image you used to meet those feelings. That is clear in the dream isn’t it? So you couldn't even feel comfortable about being near to those feelings.
If you cannot meet those feelings they will live on in you and completely mess up future relationships – like ghosts that will haunt you. So please imagine yourself back in the dream and do whatever will release you from those feelings. Shout, rave, kick him, whatever it is you need to do to be free.
Tony